This doesn't contain anything and just depends on python itself and
libcrypt-devel which it uses in Python.h.
This allows packages building against Python to makedepend on this without
having to specify libcrypt-devel etc.
It mostly worked, except for some ln failures in make install due to not
being able to create a broken symlink to a file to be created later.
Fixed by making the make rule that ln's depend on the rule that creates
the files.
Tees stdout from make to a file (in a way that doesn't suppress an error
exit from make from failing the build), and runs a sed script over that
file which looks for a list of failed modules, outputs it to ensure it
isn't lost in the build output, and exits with an error code to cause
the build to fail.
